Fruitarianism involves the practice of following a diet that includes only or primarily fruits in the botanical sense, and possibly nuts and seeds, without animal products. Fruitarianism is a subset of dietary veganism.

Fruitarianism may be adopted for different reasons, including ethical, religious, political, medical, environmental, cultural, aesthetic, economic, and health reasons. There are many varieties of the diet. Some people whose diet consists of 75% or more fruit consider themselves fruitarians.[1]

Some fruitarians will eat only what falls (or would fall) naturally from a plant: that is, foods that can be harvested without killing or harming the plant.[2][3][4] These foods consist primarily of culinary fruits, nuts, and seeds.[5] According to author Adam Gollner, some fruitarians eat only fallen fruit.[6][unreliable source?] Some do not eat grains, believing it is unnatural to do so,[7] and some fruitarians feel that it is improper for humans to eat seeds[8] as they contain future plants,[6] or nuts and seeds,[9] or any foods besides juicy fruits.[10] Others believe they should eat only plants that spread seeds when the plant is eaten.[11] Others eat seeds and some cooked foods.[12] Some fruitarians use the botanical definitions of fruits and consume pulses, such as beans, peas, or other legumes. Other fruitarians' diets include raw fruits, dried fruits, nuts, honey and olive oil,[13] or fruits, nuts, beans and chocolate.[14]

Some fruitarians of the Judeo-Christian faiths believe, based on Genesis 1:29, that fruitarianism was the original diet of humankind in the form of Adam and Eve.[12] They believe that a return to an Eden-like paradise will require simple living and a holistic approach to health and diet.[15] Some fruitarians wish, like Jains, to avoid killing anything, including plants,[12] and refer to ahimsa fruitarianism.[16] Some fruitarians say that eating some types of fruit does the parent plant a favor and that fleshy fruit has evolved to be eaten by animals, to achieve seed dispersal.[11]

In 1979, Professor Alan Walker, a Johns Hopkins University paleoanthropologist, reported that preliminary studies of unmarked tooth enamel in early hominoids suggested that pre-human ancestors apparently had a diet of mostly fruit. Walker said, "I don't want to make too much of this yet. But it is quite a surprise."[17]

In 1971, a short-term study by B. J. Meyer was published in the South African Medical Journal[18] describing how lipid profiles and glucose tolerances improved on a particular fruitarian diet.[19] An earlier 1971 study by Meyer tested a 45-year-old teacher who claimed she had eaten only fruits for the past 12 years, who was found to be in "excellent health".[20] In a further trial in the study, body weights of overweight subjects showed a tendency to "level off" at the "'theoretically ideal' weight".[21]

According to nutritionists, adults must be careful not to follow a fruit-only diet for too long,[22] a fruitarian diet is not suitable for teens,[23] and a fruitarian diet is wholly unsuitable for children.[22]

In children, growth and development may be at risk. Some nutritionists state that children should not follow a fruitarian diet. Nutritional problems include severe protein-energy malnutrition, anemia and deficiencies including proteins, iron, calcium, essential fatty acids, raw fibre and a wide range of vitamins and minerals.[26]

Actor Ashton Kutcher told USA Today that his pancreas levels went "all out of whack" after following a fruitarian diet in preparation for his role as Apple CEO and onetime fruitarian Steve Jobs, in the film Jobs. Jobs died of pancreatic cancer.[32]

Others like author Morris Krok, who at stages during his life, lived "only on fruits",[40] allegedly advised against a diet of "only fruit",[41] although it was subsequently reported that Krok's diet consisted of "just fruit",[42] with dietary practices of fruitarians as varied as definitions of the term 'fruitarianism'. Diet author Joe Alexander lived for 56 days on juicy fruits.[43]

Mohandas Karamchand Gandhi, better known as Indian political and spiritual leader Mahatma Gandhi, sustained a fruitarian diet for 5 years.[45] He apparently discontinued the diet and went back to vegetarianism due to pleurisy, a pre-existing condition, after pressure from a Dr. Jivraj Mehta.[46][47]

^Sins of the Flesh: A History of Ethical Vegetarian Thought, Rod Preece, UBC Press, 2008, "Since plants have life, it is necessary, if one is not to starve, to live from the fruit of the plant in such a manner that the host plant itself does not die."

^Nutrition for the recreational athlete, Catherine G. Ratzin Jackson, page 95, “The fruitarian diet usually consists of consuming those parts of the plant that are cast off or dropped from the plant and that do not involve the destruction of the plant itself.”, 249 page, CRC Press, 1995, ISBN 0-8493-7914-8, ISBN 978-0-8493-7914-7

^Handbook Of Pediatric Nutrition, Patricia Samour, “A fruitarian diet consists of only fruits. Any plant food that is botanically a fruit or can be obtained without killing or harming the plant is considered a fruit." Jones & Bartlett Publishers, 2003, page 143.

^The Ascensional Science of Spiritualizing Fruitarian Dietetics, Dr Johnny Lovewisdom, Ecuador: International University of the Natural Vitalogical Sciences, 1999, Introduction: "Nature is betrayed when man ingests the seeds of plants, depriving them of their means of propagating their own species"; chapter: Sugar & Starch-Friends Or Foes? "grains, nuts and other seeds are wrong as food sources"

^"Ascensional Science teaches the damaging effects of chlorophyll leafage, earthly roots and lower passion producing seeds. We are healed by levitational forces in fruit sugars and acids." Introduction to Ascensional Science of Spiritualizing Fruitarian Dietetics, Johnny Lovewisdom, International University of the Natural Vitalogical Sciences, 1999

^"The South African Medical Journal is published by the South African Medical Association, which represents most medical professionals in South Africa.", African Journals Online, http://ajol.info/index.php/samj

^B. J. Meyer; E. J. P. de Bruin, D. G. du Plessis, M. van der Merwe, and A. C. Meyer (1971-03-06). "Some biochemical effects on a mainly fruit diet in man". South African Medical Journal45 (10): 253–61. PMID5573330. Retrieved 2009-11-11.Cite uses deprecated parameter |coauthors= (help) "The effect of a nut-supplemented fruit diet on glucose tolerance, insulin secretion, plasma proteins and plasma lipids was investigated. The results suggest that, at least for the period covered by the experiment and under the prevailing conditions, the diet was adequate with respect to the parameters investigated, and may even have something to commend it."

^"Some physiological effects of a mainly fruit diet in man." Meyer BJ et al. South African Medical Journal, 1971 Feb 20; vol. 45, pp. 191-5. "Our interest in this matter was aroused when a lady of 45 years of age consulted us and claimed that she had subsisted entirely on a fruit diet for the past 12 years.", "These tests confirmed that the subject was in excellent health."

^"Some physiological effects of a mainly fruit diet in man." Meyer BJ et al. South African Medical Journal, 1971 Feb 20; vol. 45, pp. 191-5. "An interesting aspect of the diet was the tendency for the weights to level off more or less at the 'theoretically ideal' weight for the subject."

^Failure of a Womanless Eden in the Pacific - Strange Story from the South Seas, New York Times, 15 October 1905, "For days he lived alone, eating nothing but bread fruit and cocoanuts," "Of the food of choice, he lacked none.", "Weeks of life under the sun in the salt sea, and living upon fruit, had brought him to a state of wonderful physical perfection.", "For nearly two years more he continued to live the 'pure, natural life' but the charm had been completely broken by the death of his two disciples.", "in 1903, came a drought which reduced the fruit crop. The little left of it was wiped out in the Spring of 1904 by a storm. Engelhardt had the alternative of casting in his lot with the natives and eating on hogflesh, or sending a request for succor to Ulu or Herbertshohe. He did neither in his stubborness, and starvation and thirst did their work." http://query.nytimes.com/gst/abstract.html?res=990CEFDF1438EF32A25756C1A9669D946497D6CF

^Mucusless Diet Healing System by Arnold Ehret, Mucusless Diet Healing System, ISBN 1-884772-00-5, 75th Anniversary edition, "The next winter I went to Algiers, in northern Africa. The mild climate and the wonderful fruits improved my condition and gave me more faith in Nature's methods and an understanding of them, and I gained courage to try short fasts to assist the cleansing properties of fruit and climate, with such results that one morning of a well feeling day I chanced to notice in my mirror that my face had taken on an entirely new look", page 15, "Arriving home again.... I gradually took up the ordinary diet.", page 15, "My experience, tests, and experiments as well as cures, all showed that grape sugar of fruits was the essential material of human food, giving the highest efficiency and endurance, and at the same time was the best eliminator of debris and the most efficient healing agent known for the human body", page 16, "To test our efficiency at exhaustive labor, we took a trip through northern Italy, walking for 56 hours continuously without sleep or rest or food, only drink. This after a seven-day fast and then only one meal of two pounds of cherries.", page 17

^"Essie Honiball lived exclusively on fruit and a small amounts of nuts." North American Diet, Ron Lagerquist, International Bible Society (1984)

^I Live On Fruit. Essie Honiball, Macro Books, Pretoria 1981. First edition. Page 9, Chapter 1: "One does not easily cast aside established habits almost overnight...This is precisely what I did in 1958 when I, after a three day water fast, started living on fresh fruit and nuts. That was twenty years ago.", Page 17, Chapter 1: "Today I still live virtually exclusively on fruit.", Page 18, Chapter 2: "The Diet on which I have lived since 1958 is so simple that it appears almost laughable in a line of complicated diets —I live on fresh fruit and nuts.", Page 19, Chapter 2: "I can live on fruit alone, but not on vegetables."

^Health and Survival in the 21st Century by Ross Horne, Harper Collins, 1997, chapter "Dieting for Health and Longevity", section "The Natural Diet Of Man", "The study of comparative anatomy and the different natural diets of animals in the wild indicates strongly that the natural diet of early humans consisted predominantly of sweet fruits, and that even though millions of years have passed, the anatomy and digestive apparatus of humans has not changed and is therefore still best suited to fruit as the most suitable food."

^Kulvinskas, Viktoras P. Life in the 21st Century. Twenty First Century Publications, 1981. ISBN 978-0-933278-00-4.

^The Ascensional Science of Spiritualizing Fruitarian Dietetics by Johnny Lovewisdom, San Francisco: Paradisian Publications, 1999, "In two years, I was living exclusively on juicy fruits, condemning the use of nuts in the fruit diet which other fruitarians before me had used with adverse results due to the lack of the life-giving living water in nuts, making them the 'Tempters of Satan'" in section 'My Calling To The Carpophagous Conception'"

^Modern Live Juice Fasting, Johnny Lovewisdom, Connecticut: O'mangod Press, 1980, chapter 1, "I found the living blood of fruits and many vegetables a much purer life-giving, naturally prepared directly assimilable blood transfusion than can be expected from tired, worn-out, diseased blood of ordinary civilized humans."; chapter 3 "in 1953-54, I realized the true 6 months 7 day water fast with the purest distilled water usually tinctured with tomato juice"

^A Message Of Peace By One Who Lives In A Volcano!, Miguel A. Puentes, Mundial (weekly newspaper), Montevideo, Uruguay, 7 June 1949, section 'His Life In Practice': "He went on fasts, one of which he recently reached 40 days without taking anything but water with a few drops of lime juice."

^Morris Krok, Fruit: The Food and Medicine For Man, Connecticut: O'Mangod Press, (1961). page 17, Chapter 8: "It had taken me almost ten years of continual reading and meditation before I had the courage to live only on fruits.", Page 40, Chapter 19: "At the time of the incident I was living on all fruit.", Page 46, Chapter 21: "After living on fruit for about four months, raw vegetables tasted flat."

^Who Was Morris Krok?, David Klein Ph.D, Living Nutrition, Volume 20, 2007, http://www.vibranthealthandwealth.com/vibrance/articles/krok.html "Someone who attended the talk reported he said that at the moment he was eating a diet of just fruit. I’d never heard that he ate exclusively fruit; however, it would not be surprising if he did so for varying periods of time."

^The Live Food Factor, Susan Schenck, 1st Impression Publishing, 2006, "Joe Alexander tells about a time he spent 56 days eating only juicy fruits: no bananas, avocados or vegetables. He claims he never felt stronger in his life."

^The Fruit Hunters: A Story of Nature, Adventure, Commerce and Obsession, Adam Leith Gollne "Idi Amin, the tyrannical Ugandan dictator, lived his final years in Saudi Arabia as a fruitarian (his affinity for oranges earned him the nickname "Dr. Jaffa")."

^Salubrious Living (Creativity Book Publishers, 1982, and World Church of Creativity, 2003), chapter 'The Fruitarian Diet': "The fruitarian diet is composed of the products of the plant kingdom which are delicious and appealing to our taste in their natural uncooked condition. As fruits, vegetables and nuts are the foods which meet this qualification in an ideal manner they are the primary foods used by the fruitarian."

^"Steve Jobs" by Walter Isaacson. "Finally Jobs proposed Apple Computer. 'I was on one of my fruitarian diets,' [Jobs] explained." page 120. "She just wanted him to be healthy, and [Jobs] would be making weird pronouncements like, 'I'm a fruitarian and I will only eat leaves picked by virgins in the moonlight.'" page 68.

^Chapter 17, "I do not destroy the lamb and the kid to glut my appetite; acorns and berries afford me sufficient nourishment."